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Water-Year Summary for Site 13334300

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
  • For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
  • For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
00010 Temperature, water(Max.,Min.,Mean)  
00048 Pressure, diss gases(Max.,Min.,Mean)  
00060 Discharge(Mean)  
00065 Gage height(Mean)  

Water year 2019: 2018-10-01 to 2019-09-30

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USGS Water-Year Summary 2019
LOCATION - Lat 46°05'50", long 116°58'36" referenced to North American Datum of 1927, in SE 1/4 NE 1/4 sec.12, T.7 N., R.46 E., Asotin County, WA, Hydrologic Unit 17060103, on left bank 1.2 mi downstream from Grande Ronde River, 7.8 mi east of Anatone, 22 mi south of Clarkston, and at mile 167.2.
DRAINAGE AREA - 92,960 mi².
REVISIONS HISTORY - WDR WA-76-1: 1974 and 1975.
PERIOD OF RECORD - July 1958 to current year.
GAGE - Water-stage recorder. Datum of gage is 806.68 ft above NGVD of 1929. Prior to Aug. 3, 2010 previously reported as Datum of gage is 806.78 ft above NGVD.
REMARKS - Diversions upstream from station for irrigation of about 4,090,000 acres, of which about 750,000 acres are irrigated by withdrawals from ground water. Flow regulated by many reservoirs upstream from station with a total usable capacity of more than 10,000,000 acre-ft, the most effective of which is Brownlee Reservoir, 117.8 mi upstream. Diurnal fluctuations caused by Hells Canyon powerplant. U.S. Geological Survey satellite telemeter at station.
  • Water Year 2014: Records good, no estimated daily discharges.
  • Water Years 2015 to 2019: Records good, except for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 195,000 ft³/s, June 18, 1974, gage height, 24.45 ft; minimum discharge, 6,010 ft³/s, Sept. 2, 1958, gage height, 1.29 ft.
PERIOD OF RECORD - WATER TEMPERATURE: Water years 1973 to May 1984, October 1985 to current year. TOTAL DISSOLVED GAS: April 2009 to current year (seasonal records only). Seasonal records from April 2003 to September 2008, available in files of the U.S. Geological Survey Kennewick Field Office (U.S. Army Corps of Engineers Walla Walla has data for April 1999 to September 2002)
PERIOD OF DAILY RECORD - WATER TEMPERATURE: October 1959 to May 1984, April 1986 to current year. TOTAL DISSOLVED GAS: April 2009 to current year (seasonal records only).
INSTRUMENTATION - Temperature recorder since October 1959. Total dissolved gas monitor with a 1-hour logging interval since 1999.
REMARKS - Prior to Oct. 1990, temperature records furnished by U.S. Army Corps of Engineers. Prior to Oct. 2003, temperature records were rounded to nearest half degree.
  • Water Years 2014 to 2019: Temperature and Total Dissolved Gas records excellent.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 25.5°C (rounded), Aug. 26, 28, 1991, Aug. 2-4, 1994, Aug. 14, 1998; minimum, 0.0°C, several days during some winter months. TOTAL DISSOLVED GAS: Maximum recorded, 112 percent saturation, June 2-3 and 5-7, 2017; minimum, 96 percent saturation Aug. 22, 23, 26, 27, 2010, but may have been higher or lower during periods of missing record.